NEET Biology - Human Health and Diseases
Exam Duration: 60 Mins Total Questions : 30
If you are advised to get a WIDAL test done for yourself, which disease is your doctor suspecting?
- (a)
Typhoid
- (b)
Cholera
- (c)
Pneumonia
- (d)
Filariasis
Which of the following is not the component of innate immunity?
- (a)
Interferons
- (b)
Inflammatory barriers
- (c)
Natural killer cells
- (d)
Immunoglobulins
An autoimmune disease is
- (a)
Multiple sclerosis
- (b)
Myasthenia gravis
- (c)
Rheumatoid arthritis
- (d)
All of these
Which one of the following properties of the acquired immunity is the basis of vaccination?
- (a)
Specificity
- (b)
Diversity
- (c)
Memory
- (d)
Discrimination between self and non-self
LSD is derived from
- (a)
Ergot fungus
- (b)
Cannabis
- (c)
Papaver
- (d)
Thea
Marijuana is obtained from
- (a)
Ergot fungus
- (b)
Cannabis
- (c)
Papaver
- (d)
Coffea
Use of anti-histamines and steroids give a quick relief from
- (a)
nausea
- (b)
cough
- (c)
headache
- (d)
allergy
Where will you look for the sporozoites of the malarial parasite?
- (a)
Saliva of infected female Anopheles mosquito
- (b)
Salivary glands of freshly moulted female Anopheles mosquito
- (c)
Spleen of infected humans
- (d)
RBCs of humans suffering from malaria
The cell mediated immunity inside the human body is carried out by
- (a)
B-Iymphocytes
- (b)
Thrombocytes
- (c)
Erythrocytes
- (d)
T-Iymohocytes
Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain
- (a)
gamma globulin
- (b)
Antenuated pathogens
- (c)
Activated pathogens
- (d)
Harvested antibodies
The letter T in T-Iymphocyte refers to
- (a)
thalamus
- (b)
tonsil
- (c)
thymus
- (d)
thyroid
Select the correct option showing the life cycle of Plasmodium.
- (a)
Sporozoites (human) ⟶ RBCs ⟶ liver cells ⟶ gametocytes in blood ⟶ blood meal, bite (female mosquito) ⟶ fertilisation (mosquito) ⟶ sporozoites (mosquito)
- (b)
Sporozoites (human) ⟶ liver cells ⟶ RBCs ⟶ gametocytes in blood ⟶ blood meal, bite (female mosquito) ⟶ fertilisation (mosquito) ⟶ sporozoites (mosquito)
- (c)
Gametocytes (mosquito) ⟶ bite ⟶ gametocytes (human) ⟶ RBCs ⟶ fertilisation (human) ⟶ sporozoites blood meal (human) ⟶ bite ⟶ sporozoites (female mosquito) ⟶ multiply (mosquito) ⟶ gametocytes (mosquito)
- (d)
Sporozoites (human) ⟶ liver cells ⟶ gametocytes in blood ⟶ blood meal, bite (female mosquito) ⟶ gametocytes multiply (mosquito) ⟶ sporozoites (mosquito)
Elephantiasis, a chronic inflammation that results in gross deformities is caused by
- (a)
Ascaris
- (b)
E.coli
- (c)
Wuchereria
- (d)
Trichophyton
Match column I with column II and select the correct option from codes given below.
Column I | Column II |
A. Amoebiasis | (i) Treponema pallidum |
B. Diphtheria | (ii) Houseflies as mechanical carriers |
C.Cholera | (iii) DPT vaccine |
D. Syphilis | (iv) Oral rehydration therapy |
- (a)
A B C D (ii) (i) (iii) (iv) - (b)
A B C D (ii) (iii) (iv) (i) - (c)
A B C D (i) (ii) (iii) (iv) - (d)
A B C D (ii) (iv) (i) (iii)
AIDS is widely diagnosed by
- (a)
Widal test
- (b)
ELISA
- (c)
PCR
- (d)
Chromatography
The figure given below shows mode of action of AIDS virus. Identify steps A, B, C, D and E labelled in it.
- (a)
A-New viral DNA introduced into cell, B-Viral RNA produced, C-Viral DNA incorporated into host genome, D-New viral DNA, E-New viruses produced
- (b)
A-Viral DNA incorporated into host genome, B-Viral DNA, C-New viral RNA introduced, D-Viral RNA produced, E-New viruses produced
- (c)
A-Viral RNA introduced, B-Viral DNA, C-Viral DNA incorporated into host genome, D-New viral RNA produced, E-New viruses produced
- (d)
A-Viral DNA introduced, B-Viral RNA, C-Viral RNA incorporated into host genome, D-New viral DNA produced, E-New viruses produced
Marijuana is extracted from
- (a)
dried leaves and flowers of hemp plant
- (b)
ergot fungus
- (c)
roots of hemp plant
- (d)
cocoa plant
Select the correct statement with respect to the given plants.
- (a)
Opium is dried latex obtained from the unripe capsular fruits of plant A
- (b)
The drug obtained from plant B is a powerful CNS stimulant, which increases a person's mental alertness and physical activity
- (c)
Plant C belongs to Family Moraceae; bhang, ganja, charas and marijuana are the hallucinogenic products obtained from this plant
- (d)
All of these
Select the mismatched pair.
- (a)
Name of the plant Plant part Drug obtained Erythroxylon coca Leaves and young twigs Cocaine - (b)
Name of the plant Plant part Drug obtained Claviceps purpurea Fruiting bodies Lysergic acid diethylamide (LSD) - (c)
Name of the plant Plant part Drug obtained Cannabis sativa Leaves, resin and inflorescence Bhang, hashish - (d)
Name of the plant Plant part Drug obtained Thea chinensis Dried seeds Mescaline
The chronic use of drugs and alcohol results in
- (a)
excess mucous and blood clots
- (b)
internal bleeding and muscular pain
- (c)
cirrhosis and nervous system damage
- (d)
leukaemias and lymphomas
The disease chikungunya is transmitted by
- (a)
house flies
- (b)
Aedes mosquitoes
- (c)
cockroach
- (d)
female Anopheles
Antibodies present in colostrum which protect the new born from certain diseases is of
- (a)
IgG type
- (b)
IgA type
- (c)
IgD type
- (d)
IgE type
Entamoeba histolytica is transmitted through
- (a)
Insect bite
- (b)
Sweat
- (c)
Food and water contamination
- (d)
Bird droppings
A substance produced by the host in response to an infection of foreign structure is
- (a)
Antigen
- (b)
Phytotoxin
- (c)
Antibody
- (d)
Hormone
AIDS virus has
- (a)
Single strand DNA
- (b)
Double strand DNA
- (c)
Single strand RNA
- (d)
Double strand RNA
Typhoid fever could be confirmed by
- (a)
Widal test
- (b)
Mantoux test
- (c)
Schick test
- (d)
Dick test
Acid in stomach, saliva in the mouth, tears from eyes, all prevent microbial growth belong to which of the following barrier?
- (a)
Physical barrier
- (b)
Physiological barrier
- (c)
Cellular barrier
- (d)
Cytokine barrier
HIV decreases natural immunity of the body by
- (a)
Destroying antibodies
- (b)
Destroying erythrocytes
- (c)
Attacking T-lymphocytes
- (d)
Attacking B-lymphocytes
Consider the following four statements (a-d) regarding kidney transplant and select the two correct ones out of these.
a. Even if a kidney transplant is proper the recipient may need to take immuno suppresants for a long time.
b. The cell-mediated immune reponse is reponsible for the graft rejection.
c. The B lymphocytes are responsible for rejection of the graft.
d. The acceptance or rejection of a kidney transplant depends on specific interferons.
- (a)
a & b
- (b)
b & c
- (c)
c & d
- (d)
a & c
Both sickle cell anaemia and Huntington's chorea are
- (a)
Bacteria-related diseases
- (b)
Congenital disorders
- (c)
Pollutant-induced disorders
- (d)
Virus-related diseases